Patent US3733786A successfully refreshed from Google Patents.
US3733786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol precipitor
Assignee: Individual
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Filing: 1971-07-19
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Granted: 1973-05-22
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Expires: 1991-07-19
Abstract
Abstract An apparatus for precipitating aerosol particles comprises at least one pair of tubular elements placed one inside the other and forming an annular working space. The inner tubular element is connected to a source of steam or liquid to be evaporated and is made porous to enable penetration therethrough of the steam or liquid to be evaporated into the working space. The outer tubular element is maintained at a temperature below that of the inner tubular element and rotary motion is imparted to the aerosol flow in the annular working space by means of rotary blades.
Inventors
- 👤 V Koka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:43
CPC Classifications
B; B01; B01D; B01D49/00; A; A61; A61L; A61L9/00; A61L9/14; Y; Y10; Y10S; Y10S159/00; Y10S159/27
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
232 words
An aerosol precipitator connected to a source of fluid such as vapor or liquid subject to evaporation and comprising: at least one pair of tubular elements inserted one into the other and forming an annular working space therebetween for passage of an aerosol flow therethrough, the inner element being made porous and penetrable to the fluid subject to evaporation, means for supplying said fluid within the inner element; cooling jacket means surrounding the outer element and extending lengthwise over the outer element over at least a major portion thereof which circumscribes said inner element for maintaining said outer element at a temperature lower than that of said inner tubular element to provide a difference of temperature between said tubular elements sufficient to effect supersaturation of the aerosol flow with vapor and secure condensation growth of the aerosol particles; said means for supplying fluid to the inner element comprising a tube connected to one end of the inner element for supply of fluid thereto, and a tube connected to the other end of the inner element for removal of fluid therefrom, and means disposed adjacent said one end to the inner element for imparting rotary movement to the aerosol flow in said annular working space to provide for the deposition of condensation growing aerosol particles from the flow, under the action of centrifugal forces produced in the course of rotation of said flow.
Claim 2
Dependent Claim
232 words
An aerosol precipitator connected to a source of fluid such as vapor or liquid subject to evaporation and comprising: at least one pair of tubular elements inserted one into the other and forming an annular working space therebetween for passage of an aerosol flow therethrough, the inner element being made porous and penetrable to the fluid subject to evaporation, means for supplying said fluid within the inner element; cooling jacket means surrounding the outer element and extending lengthwise over the outer element over at least a major portion thereof which circumscribes said inner element for maintaining said outer element at a temperature lower than that of said inner tubular element to provide a difference of temperature between said tubular elements sufficient to effect supersaturation of the aerosol flow with vapor and secure condensation growth of the aerosol particles; said means for supplying fluid to the inner element comprising a tube connected to one end of the inner element for supply of fluid thereto, and a tube connected to the other end of the inner element for removal of fluid therefrom, and means disposed adjacent said one end to the inner element for imparting rotary movement to the aerosol flow in said annular working space to provide for the deposition of condensation growing aerosol particles from the flow, under the action of centrifugal forces produced in the course of rotation of said flow.
Claim 3
Dependent Claim
33 words
A precipitator according to claim 1 wherein said means for imparting rotary movement to the aerosol flow in the annular working space comprises a screw-type eddy-producing device disposed in said annular working space.
Claim 4
Dependent Claim
49 words
A precipitator according to claim 1 wherein said tubular elements are tapered and supported for relative axial displacement to adjust the size of the space between the tubular elements and thus regulate the intensity of supersaturation of the aerosol flow while maintaining the temperature difference between the tubular elements.
Claim 5
Dependent Claim
15 words
A precipitator according to claim 1 wherein said tubular elements are substantially coextensive in length.
Claim 6
Dependent Claim
33 words
A precipitator according to claim 1 wherein said cooling jacket means for maintaining a lower temperature on the outer tubular element comprises a jacket for a cooling liquid surrounding the outer tubular element.
Claim 7
Dependent Claim
12 words
A precipitator according to claim 1 wherein said tubular elements are vertical.
Claim 8
Dependent Claim
33 words
A precipitator according to claim 1 wherein said tubular elements are vertical and said means for imparting rotary movement comprises a screw type device, both at the top and bottom of said space.
Claim 9
Dependent Claim
12 words
A precipitator according to claim 6 wherein said tubular elements widen upwardly.
Claim 10
Dependent Claim
36 words
A precipitator according to claim 5 wherein said cooling jacket means for maintaining the outer element at a temperature lower than the inner element includes means for circulating a cooling liquid therethrough around said outer element.
Claim 11
Dependent Claim
11 words
A precipitator according to claim 3 wherein said tubes are flexible.
Claim 12
Dependent Claim
104 words
A precipitator according to claim 10 wherein said tubular elements are vertical and said one end of the inner element is the lower end thereof and the other end of the inner element is the upper end thereof, said precipitator further comprising a branch pipe for conveying fluid, said branch pipe being connected to the upper end of the inner element and to said tube at the upper end to interconnect the same and means for raising and lowering the inner element within the outer element including means coupled to said branch pipe to raise and lower the same and the inner element therewith.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |